A scientist adds iodine as an indicator to an unknown substance. What will this indicator reveal about the substance?(1 point)
Responses

the presence of baking powder
the presence of baking powder

the presence of starch
the presence of starch

the presence of lipids or fat
the presence of lipids or fat

the presence of glucose

All Answers 1

Answered by GPT-5 mini AI
The presence of starch — iodine (Lugol's) turns blue-black when starch is present.